Tanzanite from Tanzania 1.162ct loose stone
Sale price¥39,800
Brazilian Green Tourmaline 1.333ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 2.907ct Loose Stone
Sale price¥98,000
Brazilian Green Tourmaline 0.935ct Loose Stone
Sale price¥45,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Mozambique Rubellite 2.141ct Loose Stone
Sale price¥69,800
Spanish Sphalerite 2.726ct loose stone
Sale price¥39,800
Sri Lankan Silky Sapphire 6.4mm/1.036ct Loose Stone
Sale price¥12,800
Goshenite 0.852ct loose stone
Sale price¥8,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥19,800
Mexican Danburite 7.0mm/1.224ct loose stone
Sale price¥9,800
Brazilian Lepidocrocite in Quartz 1.126ct Loose Stone
Sale price¥12,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Bicolor Fluorite 6.1mm/0.869ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.945ct Loose Stone
Sale price¥24,800
Flower rutilated quartz 0.955ct loose stone
Sale price¥9,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥29,800
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut)
Sale price¥9,800
Brazilian copper rutilated quartz 1.410ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.647ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.560ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.262ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.465ct loose stone
Sale price¥8,800
Spanish Sphalerite 7.0mm/1.753ct loose stone
Sale price¥35,800
Almandine Garnet 1.388ct Loose Stone
Sale price¥12,800
Almandine Garnet 1.058ct Loose Stone
Sale price¥12,800
Ethiopian Opal 0.466ct Loose (Heart Shape, Faceted Cut)
Sale price¥3,980
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.